FLORA OF VIETNAM
Orchidaceae
Rhomboda petelotii (Gagnep.) Ormerod?

N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, Lung Li valley, around point 22°16′10′'N, 105°31′01′'E, Cot Moc mountain at elevation 800-900 m a.s.l. Primary broad-leaved evergreen closed forest on very steep slopes and cliffs near tops of rocky ridge composed with solid marble-like stratified limestone. Creeping terrestrial herb. Leaves uniform deep green to deep green-brown with median indistinct white stripe. Occasional.
HAL 4790 23 May 2004 (Silica fix.).
Collectors: L.Averyanov, N.T.Hiep, P.V.The, N.T.Vinh.